MEXICO CITY (AP) — A photojournalist who was found slain in Mexico City after he fled harassment in his home state appears to have been tortured before he was shot to death, the head of a free press advocacy group said Sunday.

A teenager stabbed at a Gay Pride march died of her injuries Sunday as the attack and a firebombing that killed a Palestinian child put pressure on Israel to crack down on Jewish extremists. Shira Banki, 16, was among six people stabbed at the Jerusalem march on Thursday by a suspect identified as an ultra-Orthodox Jew released from prison only weeks earlier for a similar attack.

Sweden's Sarah Sjostrom broke the women's 100m butterfly record on Sunday as Sun Yang and Katie Ledecky retained their 400m freestyle titles at the world championships. China's Sun, the reigning 400, 800 and 1500m world champion and record holder over the mile, clocked three minutes 42.58 seconds to win his final by more than a second as Britain's James Guy took silver. The Chinese giant is still nearly three seconds from Paul Biedermann's world record, set by the German in 2009 before neoprene suits were banned, and it remains his goal a year from the Rio de Janeiro Olympics.